Skipping your period is normal in your teen years especially if you've only just begun having it
If there are any other symptoms you are concerned about contact your doctor or just do a pregnancy test to be at ease reply
I don't think you're fertile cause girl first. You're a virgin. Secound you not pregnant. Three you don't have children or do you? But it can't be bc you a virgin. And sometimes your period just comes late so i think you don't have to worry sweetie, it's normal to skip your period reply